Automatic wood turner



June 9, 1925. 1,540,801

w. o NEEL 7 AUTOMATIC woon TURNER Filed March 31. 1924 INVENTOR Iva/Ital ONcal,

ATTORNEY Patented June 9, 1925.

WALTER. o'NEEIi, or sHEmrvILLE; InnIAn p Annemarie woo]; TURNER;

1 applicationifileii;March.31, 1924. Serial No. 703,083.:

7 To all whom it WMQILG'OILGGWLZI Be ituhnown that; .1, Emma: O Nnnn, a

turning machines; and particularly toathat' type of turning machine whicjlrthe cutter is automatically. fed to the; work to produce tu ning-sot arprede ninedishape, j

. One: of the objectsof my invent onis to provide; an1automatic-guiding means for the cutter head whichma i be quickly and read ly adjusted to cause t;l' e; cutter head to ll'lOVGdlL a predetermined path, Q a i For; the; purpose; of disclosing n' ydnvem tion, I have illustratedcone embodiment thereof in the accompanying drawingsflin; j

a a i j v tion asthat ofttheehttenheadl.

Fig. lis a perspective view of amachine; j j V v a the pattern preferably by removing thesame from the. machine bed and reversing: it a above I the vpattern so? that when the; teeth are loosenedthey will assume tlwrOnfigurat-ion which embodying my invention," j a 1 vi Fig. 12 is a detail plan ot-l the guiding cam and associated forle; a r r Fig, "3; is a; section taken; on the: line of Fig.2 and-- includinggthe cutterhgead;

Fig. 4 is" a sectioirta-ken on the line 44: of Fig. 2, and V Fig. 5 is a detailed view showing the manner of adjusting the template to thepattern.

In the embodiment ofthe invention illustratecl, a rotating threaded shaft 1 mounted in suit-able journals in the end membersQ of the machine frame has mounted thereona nut 4 having a pair of arms 5 and 6 extending at right angles to one another. The arm 5 carries a sultable electric dllVlllg,

motor 7 for operating the cutter head 8 which is mounted on the shaft of the motor. The arm 6, at its free end is provided with a fork 9, the prongs of which have openings through which extends a shaft 10 and are arranged on each side of a helical cam 11 splined on the shaft 10. The face of the cam 11 spirals toward the axis thereof at opposite ends so that there is provided a helical cam surface gradually increasing in diameter from each end toward the center, as shown at 12 and 13. This cam face is grooved at 14; to co-operate withthe track teeth of the rack of the template 15. The template 15 comprises a clamping frame 16 in which is secured, by means of the clamp- I ing screw 17, a plurality of individually adjustable plates 18 forming the track teeth of groove l ljin the cam wheel.

'of travel of the cam wheel 11.

parallel relation! and at theirupward ends are tapered; at 19 to'cowoperatei with; the

'lheyare also arran 'ed;at-j a sli ht 311 16., to-the la hofg c: E5 2:: l

, Pa caricatravel of the ca m sothat thecaniEwilltake, a

into engagementwith' them as: inithe threads vof a screw, 'llhefpamei 16 1s adaptedito' be removably secured to the bed 20 of the ma chine frame and in, a; position beneath the 7 line offltravel of the camwlifeelwhich, due

head andalong the shaft 10. 1

23 from. the driving chuck 2 1 of 'theilathe chucksZgiand 25, in which thework isiheld and adapted tobe rotated-in thesa-me direc- In operation, a the template, adjusted to of the'pattern,,as. shown in; Fig. 5.1 The track: test-1'1 are then locked ill their; adj listed-.-

position and the template bolted to the machine frame in position beneath the line 7 The blank 26 is inserted in thechucks 24 and25 and the machine started with the cutterhead 8 at the extreme right of the machine.

the cutter headto move across the face of the blank 26 and the cam 'wheel llcto move along the shaft lt). At the same time, this cam Wheel is rotated,by the shaft, in engagement with the track teeth 18 and at the points where the teeth project upwardly, and due to the spiral arrangement, the cam wheel will ride from one tooth to the next succeeding tooth and where the teeth form a series of steps upwardly,'will ride up on each succeeding tooth, and where the. teeth to the ifork9, will be moved withthe; cutter; i

so The threaded shaft 1' with'the nut 4 causes" i form a series of downward steps,.will corre--' spondinglyride on each decending'tooth,

thereby causing the cutter head to move further toward or away from the center of the blank," causing the same to be cut "in" exact diiplication of the pattern froin which the template has been adjusted.

Due to this construction, after the temQ platehas once been adjusted, the pattern-may be dispensed with and used for adjusting other machines, or stored away for future use. By my construction there is no wear and tear upon the pattern itself, so that these patterns, which are expensive tomake, will last indefinitely, while at the same time the. template may be readily adjusted to produce exact reproductions of the patterns.

I claim asmy invention: 4 I

1. In a machine of the character described, the combination with a cutter head, of a support therefor and means for causing said support to oscillate, including a tem plate having a plurality of track teeth of different elevations and a helical cam arranged to engage said teeth. e

2. In a machine of the character described, the combination with a cutter head, of a support therefor, a template for said cutter head, including a plurality of separately adjustable track teeth and a helical cam connected to said support and co-operatin with said teeth. 7

3. In amachine of the character described, the combination with a cutter head, of means for oscillating said head including a plurality of track teeth having diEerent elevations, and a helical cam spiraling towards its axis at each end and co-operating with said support.

4:. In a machine of he character described, the combination with; a cutter head, of means for oscillating said head including a plurality of track teeth separately adjustable, and a helical cam spiraling towards its axis at each end.

5. In a machine of the character described, the combination with av cutter head, of

operating with said cam and having a plurality of separately adjustable track teeth arranged to be 'engagedby said cam and means forrotating said cam.

7 Ina machine of the character described, the combination with a. cutter head, of a supporting arm 'for said head carrying the head at one end thereof, ofa feeding screw on which the arm is oscillatingly mounted and adapted to feed the head across the.

face of the work, a helical cam spiraling at its opposite ends towards the axis connected to the opposite end of said arm, a rotatable shaft on which said cam is splined for rotating the cam while permittin it to be moved with the arm, and a template having a plurality of track teeth separately adjustableand adapted to be respectively engagedby said cam.

In witness whereof, I WALTER ONEEL have hereunto set my hand at Indianapolis, Indiana, this 11th day of March, A. D. one thousand nine hundred and twenty four.

WALTER ONEEL. 

